Engine oil Shell or OEM Audi

Ive been using 5w40 for 100k miles and my engine is happy as can be. It actually is noticeably smoother with thicker weight

I have used Shell Rotella T6 for 19 years on this engine with no issue.

Mannol 5W30 the one with JP at the end

Shell Helix Ultra 5W40 if you like to experiment, will make your bug quieter, but you will discover other noises (like tires, rattles of the trunk cover, gear noise, compressor of aircon).

Shell Rotella T6 5w40 and Tokyo Roki OEM filter all day everyday.

Both oils significantly reduced oil consumption

Mas smooth siya kesa sa shell long ride tapos fully synthetic at API SP na din.

Yung sa pcx160 ko, bago ako lumipat sa amsoil dati ginagamit ko yung shell advance fuel save 10w-30 fully synthetic. Goods sya smooth sya gamitin at maganda performance

Same tayo ng Unit OP (Aerox V2)

Natry ko na both yan and mas nagtagal ako sa shell longride. Sa opinion ko lang mas smooth sa Makina yung shell long ride yung ultra scooter smooth din naman pero nagstay ako sa longride kasi ayun ang recommended viscosity sa Manual ng Aerox V2 (10W-40).

Shell ultra 15w-50, been using that in my reborn for 3 yrs now, buttery smooth.

I had the same issue on my 2019 A6 3.0 last year. Two times I had to pop into the dealership to have oil removed (no charge) and the issue was due to dilution and short trips.

I run the diesel Rotella T6 5w-40. My catalytic converter decided to start throwing P0420 codes around 58k miles and I spoke to a shop that I am going to have tune my car and one of the techs said that they reformulated T6 a few years ago and it has more zinc in it than it used to and that might have had an effect on my cat and it's early demise.